Photo Bureau of Reclamation, U.S. Dept of the Interior
Glen Canyon Dam tunnel spillway damage in 1983
Posted on 01/18/2012 8:39:46 AM PST by fishtank
Photo Bureau of Reclamation, U.S. Dept of the Interior
Glen Canyon Dam tunnel spillway damage in 1983
This is a followup to this post:
http://www.freerepublic.com/focus/f-chat/2833982/posts
There were some doubts on that thread if moving water could/would rapidly erode bedrock.
I’ve seen modeling of this effect used to explain features in the Scablands resulting from the ice dam breaking and abruptly draining Lake Missoula.
More like there were cavities in the concrete from all the men who died when they fell into the concrete as it was poured! Who knows.
Jimmy Hoffa.
Interesting.
ping
Yep. Used to go water skiing on Lake Missoula. Tried to go fishing, but there were just suckers there.
The Glen Canyon Dam is spectacular. There is a visitors center that gives a great view of the dam and the wall of the canyon on the far side of the river.
Of interest to me was a darkened band with lots of green stuff in the canyon wall. It looked to me that the impounded water had found a course between the sandstone layers and was traveling far down stream. Plants found this water in the slickrock desert and were thriving.
You are aware< I hope, that the stories of burials in concrete pours at Hoover and Glen Canyon are just that — stories.
They were prompted by jokers leaving boots turned upside down in fresh concrete as they left their shift. Actually in these massive placements, the concrete rises at a very slow rate due to the volume and area of the placement and the need to keep the hydraulic pressures against concrete formwork manageable. On mass pours at Hoover they talked about six inches per hour.
I guess it depends on how you define "rapidly". I do know that Niagara Falls is moving slowly upriver due to bedrock erosion. (obligatory "Slowly I Turn...")
***... but there were just suckers there.****
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If the entire world is flooded (water quickly assumes equilibrium elevation), where can that water "run" to -- especially at cavitation velocities?
seems like cavitation releases a lot of energy.
Could that be harnessed to drive a turbine and produce electricity?
Maybe. There was talk for a while about using cavitation to drive cold fusion. I don’t think it panned out.
Indeed. Thank you for sharing your insights, dear brother in Christ!
Niagara Falls is realtively slow speed under little pressure compared to what they are talking about here
in the NorthWest USA there are the ‘badlands’ that look as if they had massive erosion from high pressure rushing water (only explanation that makes sense) and we are talking about state-wide flows
(global flood?)
There are deep bore holes with globe-shaped rocks inside them. these are formed by rushing water and are seen all the time, but in this case these are massive!
*shrug* Water would still run down from the mountains and high places until equilibrium was established.
Gotta give the YECs props on this one. At least this time they aren’t calling for the suspension of the laws of physics.
There was talk for a while about using cavitation to drive cold fusion. I don’t think it panned out.
...........
Yeah I saw that earlier. But I’m not such a physicist that I would know why you’d need a secondary effect like cold fusion to produce energy sufficient to drive a turbine...
maybe its that the energy needed to create the cavitation is greater than the energy released with cavitation—ie its endothermic.
That would be the logical reason for not trying to harvest the energy released by cavitation itself.
However, on first blush it sure doesn’t look like the net i/o is some fractional number given that the bubbles reach such high temperatures.
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